Latest deals
Insights
FAQs
Price Alerts

Cheap flights from District of Columbia to Ko Samui from $600

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from District of Columbia to Ko Samui

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:25 pm - 8:10 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
29h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:35 pm - 9:00 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
29h 25m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$1,219Multiple Airlines
Thu, Feb 18 - Thu, Feb 25
Multiple Airlines Logo
8:05 pm - 9:20 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
25h 15m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
2:30 pm - 5:31 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
27h 01m3 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl Seattle/Tacoma Intl
$1,746Multiple Airlines
Thu, Feb 18 - Thu, Feb 25
Multiple Airlines Logo
2:25 pm - 8:10 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
29h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
3:35 pm - 9:00 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
29h 25m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,194Multiple Airlines
Wed, Dec 23 - Thu, Dec 31
Etihad Airways Logo
2:25 pm - 7:10 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
28h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
5:40 pm - 9:00 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
27h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,257Etihad Airways
Sun, Dec 20 - Wed, Dec 30
Multiple Airlines Logo
9:55 am - 8:00 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
34h 05m3 stops Toronto Pearson Intl Tokyo Narita Singapore Changi
Multiple Airlines Logo
7:50 pm - 7:25 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
35h 35m3 stops Singapore Changi Kuala Lumpur Intl Istanbul
$2,314Multiple Airlines
Thu, Feb 18 - Thu, Feb 25
Qatar Airways Logo
8:05 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
26h 30m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
9:10 pm - 3:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
30h 45m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$2,451Qatar Airways
Thu, Dec 24 - Tue, Dec 29
Etihad Airways Logo
2:25 pm - 7:10 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
28h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
3:50 pm - 9:00 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
29h 10m2 stops Phuket City Abu Dhabi Zayed Intl
$2,466Etihad Airways
Sat, Dec 19 - Wed, Dec 30
Qatar Airways Logo
8:05 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
26h 30m2 stops Doha Hamad Intl Bangkok Suvarnabhumi
Qatar Airways Logo
9:10 pm - 3:55 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
30h 45m2 stops Bangkok Suvarnabhumi Doha Hamad Intl
$2,490Qatar Airways
Fri, Dec 25 - Tue, Dec 29
Etihad Airways Logo
2:25 pm - 7:10 amIAD  Washington, D.C. Dulles Intl-USM Ko Samui
28h 45m2 stops Abu Dhabi Zayed Intl Bangkok Suvarnabhumi
Etihad Airways Logo
5:40 pm - 9:00 amUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
27h 20m2 stops Bangkok Suvarnabhumi Abu Dhabi Zayed Intl
$2,544Etihad Airways
Fri, Dec 25 - Wed, Dec 30
Lufthansa Logo
10:55 pm - 5:40 pmIAD  Washington, D.C. Dulles Intl-USM Ko Samui
30h 45m2 stops Munich Franz Josef Strauss Bangkok Suvarnabhumi
Lufthansa Logo
8:30 pm - 3:35 pmUSM  Ko Samui-IAD Washington, D.C. Dulles Intl
31h 05m2 stops Bangkok Suvarnabhumi Munich Franz Josef Strauss
$2,588Lufthansa
Tue, Dec 22 - Wed, Dec 30

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Etihad Airways flights from District of Columbia to Ko Samui

Our best Etihad Airways deals on District of Columbia to Ko Samui flight tickets
Etihad Airways
Dec 20
IAD2:25 pmWashington, D.C. Dulles Intl
28h 45m
2 stops
USM7:10 amKo Samui
Dec 30
USM5:40 pmKo Samui
27h 20m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$2,257
Etihad Airways
Dec 19
IAD2:25 pmWashington, D.C. Dulles Intl
28h 45m
2 stops
USM7:10 amKo Samui
Dec 30
USM3:50 pmKo Samui
29h 10m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$2,466
Etihad Airways
Dec 25
IAD2:25 pmWashington, D.C. Dulles Intl
28h 45m
2 stops
USM7:10 amKo Samui
Dec 30
USM5:40 pmKo Samui
27h 20m
2 stops
IAD9:00 amWashington, D.C. Dulles Intl
$2,544

Malaysia Airlines flights from District of Columbia to Ko Samui

Our best Malaysia Airlines deals on District of Columbia to Ko Samui flight tickets
Malaysia Airlines
Oct 30
IAD9:05 pmWashington, D.C. Dulles Intl
36h 20m
3 stops
USM8:25 pmKo Samui
Nov 6
USM3:35 pmKo Samui
36h 20m
3 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$2,112
Malaysia Airlines
Dec 23
IAD8:05 pmWashington, D.C. Dulles Intl
36h 45m
3 stops
USM8:50 pmKo Samui
Dec 31
USM3:50 pmKo Samui
36h 05m
3 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$5,087
Malaysia Airlines
Dec 19
IAD8:05 pmWashington, D.C. Dulles Intl
32h 55m
3 stops
USM5:00 pmKo Samui
Dec 30
USM3:50 pmKo Samui
36h 05m
3 stops
IAD3:55 pmWashington, D.C. Dulles Intl
$6,254

momondo Fare Finder

 
Use the filters below to find and compare flights from District of Columbia to Ko Samui that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 2/18

2:25 pm-8:10 am

2 stops29h 45m

Ko Samui

Thu 2/25

3:35 pm-9:00 am

2 stops29h 25m

$1,219
Quickest round-trip

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 2/18

8:05 pm-9:20 am

2 stops25h 15m

Ko Samui

Thu 2/25

2:30 pm-5:31 am

3 stops27h 01m

$1,746

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Wed 12/23

2:25 pm-8:10 am

2 stops29h 45m

Ko Samui

Thu 12/31

3:35 pm-9:00 am

2 stops29h 25m

$2,194

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Sun 12/20

2:25 pm-7:10 am

2 stops28h 45m

Ko Samui

Wed 12/30

5:40 pm-9:00 am

2 stops27h 20m

$2,257

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 2/18

9:55 am-8:00 am

3 stops34h 05m

Ko Samui

Thu 2/25

7:50 pm-7:25 pm

3 stops35h 35m

$2,314

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Thu 12/24

8:05 pm-10:35 am

2 stops26h 30m

Ko Samui

Tue 12/29

9:10 pm-3:55 pm

2 stops30h 45m

$2,451

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Sat 12/19

2:25 pm-7:10 am

2 stops28h 45m

Ko Samui

Wed 12/30

3:50 pm-9:00 am

2 stops29h 10m

$2,466

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Fri 12/25

8:05 pm-10:35 am

2 stops26h 30m

Ko Samui

Tue 12/29

9:10 pm-3:55 pm

2 stops30h 45m

$2,490

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Fri 12/25

2:25 pm-7:10 am

2 stops28h 45m

Ko Samui

Wed 12/30

5:40 pm-9:00 am

2 stops27h 20m

$2,544

Washington, D.C.Ko Samui

IAD Washington, D.C. Dulles Intl - USM Ko Samui

IADUSM

Washington, D.C. Dulles Intl

Tue 12/22

10:55 pm-5:40 pm

2 stops30h 45m

Ko Samui

Wed 12/30

8:30 pm-3:35 pm

2 stops31h 05m

$2,588

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Ko Samui from

How to get the cheapest flight ticket from District of Columbia to Ko Samui

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from District of Columbia to Ko Samui?

EVA Air is the most popular carrier operating from District of Columbia to Ko Samui

Cheap District of Columbia to Ko Samui flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to Ko Samui

Best Price Found

$600

Fastest flight time

27h 50m

Direct flights

None
The best one-way flight to Ko Samui from District of Columbia in the past 72 hours is $600. The best round-trip flight deal from District of Columbia to Ko Samui found on momondo in the last 72 hours is $1,219.
The fastest flight from District of Columbia to Ko Samui takes 27h 50m
There are no direct flights from District of Columbia to Ko Samui. There are no popular flight routes from District of Columbia to Ko Samui.
Search flight deals

Frequently asked questions about flying from District of Columbia to Ko Samui

  • When did momondo last update prices for flights from District of Columbia to Ko Samui Airport?

    Prices for flights from District of Columbia to Ko Samui Airport refresh daily.

  • How old do you have to be to fly from District of Columbia to Ko Samui Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to Ko Samui Airport.

  • What documentation or ID do you need to fly to Ko Samui Airport?

    The travel and health documents required for your trip to Ko Samui Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ko Samui Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Traveling to a place near Ko Samui?

Book flights to Ko Samui if you plan to visit one of these locations
Ko Tao
Ko Pha Ngan
Khanom

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to Ko Samui?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from District of Columbia to Ko Samui. momondo saves you time and could save you money on your trip.

Can I find flights from District of Columbia to Ko Samui with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ko Samui from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to Ko Samui?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Ko Samui from District of Columbia.

I’m not ready to book a flight from District of Columbia to Ko Samui right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of District of Columbia to Ko Samui flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Ko Samui trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 11/21
Sat 11/28
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Thailand